Sleep deprivation causes great health problems.
A bad sleep schedule and sleep deprivation significantly affect almost all the internal systems of a human body — digestive, cardiovascular, endocrine, and more. And it can cause diverse types of health problems, starting with a weakened immune system and hormonal changes and finishing with depression, heart disease, and even diabetes.
Dr. Kelley tested his theory in several schools across Britain where classes started at 10 am instead of 8 am and students had a chance to sleep longer. These changes not only increased productivity but also improved the level of attendance and common health and boosted their moods.
When do you usually wake up? Do you get enough sleep? We’d be happy to hear from you in the comments below!